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can I get help please 3) If z is a standard normal variable, find the probability a) Find the probability z lies between -2.75 and

can I get help please

3) If z is a standard normal variable, find the probability a) Find the probability z lies between -2.75 and -2.00. b) Find the probability that z is greater than -1.50. c) Find the probability that z is less than -0.19

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